Optical lens



FIG. 1 is a top front perspective view of an optical lens of the presentinvention;

FIG. 2 is a top rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a first side view thereof, wherein the second side view is amirror image thereof; and,

FIG. 6 is a top view thereof, wherein the bottom view is a mirror imagethereof.

The ornamental design for an optical lens, as shown and described.